... fibre cylinder Silicone Full Face mask Weigth:13KG Fire fighting Breathing apparatus equipment RHZKF series of ... breathing apparatus. This series of products are widely used in fire fighting, chemical industry, shipbuilding, petroleum, metallurgy, electricity, ... gage --- Standard fluorescent pressure gauge, waterproof, and shockproof. Alarm whistle --- When the cylinder pressure drops to 4 ~ 6MPa ...